The Sims 3 problem/glitch with the houses?

I'm having this issue with my game where the house looks crazy. As soon as I zoom into the active house from the town map, all the roofs and terrain are like shattered pieces of glass and I can't see beyond/minimize them. Also the house has a huge smudged "tail" that extends way beyond the lot. Is anyone else having this issue? How can I fix it? I tried moving the household out and back in or changing the active household but this problem seems to be with EVERY household.